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Premium AR-15 & AR-10 Parts

One of the primary advantages of the AR platform is that it can be easily customized to suit the shooter's needs. This versatility allows the AR to adapt to nearly any situation imaginable--and that's what makes it the premier combat rifle of the world. If you're looking to outfit your AR-15 or AR-10 with back-up sights, ergonomic pistol grips, enhanced charging handles, slings, advanced trigger kits, or just about anything else you can think of, you've come to the right place.

Our selection of AR parts can transform any basic carbine into a complete weapon system. If you're looking for replacement parts, those are available too. Stock up now so that you'll have what you need later when it's really needed. Tier One Arms stocks products from reputable manufacturers such as Magpul, Vltor, Noveske, ALG Defense, and more, so you won't ever have to think twice about trusting your gear.

Designed for use with MOE and ACR™ (Adaptive Combat Rifle) Hand Guards, the MVG is a basic, light weight, cost-effective vertical fore grip that attaches directly to these hand guards without any rail needed.

Developed from the operational experience of the Magpul® Dynamics team, the B.A.D. Lever™ (Battery Assist Device) is designed to considerably improve the speed and efficiency of the AR15/M16 bolt catch.

Battle Arms Development Enhanced Pins set consists of the ETP (Enhanced takedown pin) and EPP (Enhanced Pivot Pin). Precison CNC machined from bar stock, the EPS are made from hardened 12L14 steel and finished in milspec maganese phosphate.

The ALG Defense Quality Mil-Spec (QMS) Trigger is designed for those shooters where tradition, value and regulatory concerns are of primary importance. The pull of the QMS is very similar to a standard mil-spec trigger, however the majority of the associated grittiness of the stock trigger pull has been removed while the well known reliability of a stock trigger remains. The pull weight is not lower than the M4/M16 minimum weight specification of 5.5lbs.

**Tuned by Geissele Automatics**

The BCMGUNFIGHTER™ Charging Handle and extended latches feature internal redesigns to direct the force off of the roll pin and into the body of the charging handle during support hand only manipulations.

The BCMGUNFIGHTER™ Charging Handle and extended latches feature internal redesigns to direct the force off of the roll pin and into the body of the charging handle during support hand only manipulations.

NOVESKE KeyMod Offset Light Mount Fits: Surefire Scout Light Series

Battle Arms Development - Ambidextrous Safety Selector (BAD-ASS) for the AR15 Style Rifles and the ArmaLite, Inc's AR10 (Semi Auto). The Levers are detachable and interchangeable on both sides for maximum flexibility and user preference. The BAD-ASS is a must have for the "South Paw" and Ambidextrous Shooters!

Battle Arms Development - Ambidextrous Safety Selector (BAD-ASS) for the AR15 Style Rifles and the ArmaLite, Inc's AR10 (Semi Auto). The Levers are detachable and interchangeable on both sides for maximum flexibility and user preference. The BAD-ASS is a must have for the "South Paw" and Ambidextrous Shooters!

The MS3 Single QD maintains material construction and specifications identical to that of the standard MS3, but features a heavy-duty push-button QD sling swivel for the one-point (rear) weapon attachment rather than the Magpul Paraclip.